/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/Interfaces/MetasoundFrontendInterfaceRegistry.h
Find an interface with the given key. Returns true if interface is found, false if not.
bool FindInterface ( const [FInterfaceRegistryKey](API\Plugins\MetasoundFrontend\Interfaces\FInterfaceRegistryKey) & InKey, [FMetasoundFrontendInterface](API\Plugins\MetasoundFrontend\FMetasoundFrontendInterface) & OutInterface ) const